# Building OAI executables (Trunk and next release)
Please use these instructions to build OAI on the current trunk and as of Release 0.3.
Please use these instructions to build OAI on:
* all current `master` tags (up to **`v1.0.2`**) and
* most of `develop` tags (up to `2019.w08`)
OAI comes with an automated build script (beta version) located at the root of the `cmake_targets` directory. Currently, the tool is developed to build the eNB for different hardware platforms, 3GPP releases, standalone or with S1 interface, unitary simulations, and system simulation.
